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P0750: Shift solenoid A fault

Shift solenoid A in the automatic gearbox has a fault and the box may stay stuck in one gear. Fluid, wiring or the solenoid are typical.

Code P0750 at a glance
CodeP0750
SystemEngine and transmission
GroupP07xx, Transmission
TypeGeneric: it means the same on every make
Can you keep driving?With care

What P0750 means

Shift solenoids route fluid inside the automatic gearbox to move from one gear to the next. Exactly which job solenoid A does is up to each manufacturer. The control unit has found a fault with shift solenoid A or its circuit, without saying whether it is electrical or mechanical.

Most common causes

  • Low or badly worn gearbox fluid
  • Connector for shift solenoid A loose, corroded or with fluid inside
  • Damaged wiring between the control unit and the gearbox
  • Shift solenoid A failed or jammed with dirt
  • Dirty or worn valve body
  • Transmission control unit (uncommon)

Symptoms

  • Engine warning light on
  • Gearbox stays in one fixed gear (limp mode)
  • Harsh, late or missed gear changes
  • Higher fuel use from running in the wrong gear

Can you drive with P0750?

With care You can drive, but the gearbox often sticks in a single gear, so the car feels weak or over-revs. Drive calmly to a garage and avoid fast roads if it won’t change up.

How to check it

First check the gearbox fluid level and colour if there is a dipstick, and look at the gearbox connector for looseness or fluid inside. Note which gear and what temperature the fault appears at so you can tell the garage.

How to read and clear P0750 with Final OBD

Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P0750 with this same explanation and whether it’s confirmed, pending or permanent.

This code is usually stored by the gearbox control unit. With Free you read it for nothing with its short description, because Free reads every control unit; with Pro you also get the full explanation, how the car was running when it was logged and clearing.

Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before the ITV. It’s all in how to read and clear fault codes and in the ITV and OBD.

Similar codes

P0750 is a generic code, so it means the same on any make, for example on Citroën, Ford, Hyundai, Mercedes-Benz, Renault, Volvo. See what Final OBD does on your car in makes and models.

What does code P0750 mean?

Shift solenoids route fluid inside the automatic gearbox to move from one gear to the next. Exactly which job solenoid A does is up to each manufacturer. The control unit has found a fault with shift solenoid A or its circuit, without saying whether it is electrical or mechanical.

Can you drive with P0750?

You can drive, but the gearbox often sticks in a single gear, so the car feels weak or over-revs. Drive calmly to a garage and avoid fast roads if it won’t change up.

How do you clear P0750?

With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P0750 comes back.